Предмет: Алгебра, автор: CDolphin

Докажите, что выражение 11(x²)² + (3+х²)² - 9 не может принимать отрицательных значений

Ответы

Автор ответа: D1mson

1)При любом значении в четной степени х больше или равен 0 2) если подставить в данное уравнение х=0, то 11(0²)²+(3+0²)²-9 0+9-9=0 Это наименьшее значение уравнения, а значит отрицательных значений у него нет

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